#BB3839#BB3839

#BB3839 is a mid, vivid red. Relative luminance 0.137; OKLCH L 53.6% C 0.168 H 24.4°. Best body text is #FFFFFF at 5.62:1 contrast (WCAG AA passes).

Color values

HEX	#BB3839
RGB	rgb(187, 56, 57)
HSL	hsl(360, 54%, 48%)
HSV	hsv(360, 70%, 73%)
CMYK	cmyk(0%, 70.1%, 69.5%, 26.7%)
CIE-LAB	lab(43.79, 52.28, 29.96)
CIE-LCH	lch(43.79, 60.26, 29.82°)
OKLab	oklab(53.56% 0.1527 0.0694)
OKLCH	oklch(53.56% 0.168 24.4)
XYZ	xyz(22.6487, 13.6919, 5.3203)
Luminance	0.1369 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB3839 #38BBBA

analogous

#BB387A #BB3839 #BB7838

triadic

#BB3839 #39BB38 #3839BB

tetradic

#BB3839 #7ABB38 #38BBBA #7838BB

square

#BB3839 #7ABB38 #38BBBA #7838BB

split-complementary

#BB3839 #38BB78 #387ABB

monochromatic

#5D1C1C #8C2A2B #BB3839 #D06161 #DE9090

Accessibility & contrast

On white

5.62

#BB3839 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.74

#BB3839 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB3839

5.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB3839	#FFFFFF	#000000	##FFFFFF
##BB3839	1.00	5.62	3.74	5.62
#FFFFFF	5.62	1.00	21.00	1.00
#000000	3.74	21.00	1.00	21.00
##FFFFFF	5.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5638

Deuteranopia (green-blind)

#7E7235

Tritanopia (blue-blind)

#CD0D3A

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #bb3839;
/* rgb */ color: rgb(187, 56, 57);
/* oklch */ color: oklch(53.6% 0.168 24.4);

Tailwind

colors: {
  custom: {
    50: '#d7776f',
    500: '#bb3839',
    950: '#000000',
  },
}

SCSS

$custom: #bb3839;
$custom-light: #d7776f;
$custom-dark: #000000;

JSON

{
  "hex": "#bb3839",
  "rgb": {
    "r": 187,
    "g": 56,
    "b": 57
  },
  "hsl": {
    "h": 359.542,
    "s": 53.909,
    "l": 47.647
  },
  "oklch": {
    "l": 0.53558,
    "c": 0.1677,
    "h": 24.4
  },
  "luminance": 0.13689
}

Semantic roles & 50–950 ramp

primary

#BB3839

secondary

#86C8C8

accent

#DDDC4B

background

#FEF7F6

surface

#FCEEEC

border

#D5C9C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #BB3839

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →